linux-kernel - [PATCH v3 1/5] dt-bindings: display: rockchip: Add rk3576 DisplayPort

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Message-ID: <20260206010421.443605-2-andyshrk@163.com>
Date: Fri,  6 Feb 2026 09:04:11 +0800
From: Andy Yan <andyshrk@....com>
To: dmitry.baryshkov@....qualcomm.com,
	heiko@...ech.de
Cc: alchark@...il.com,
	andrzej.hajda@...el.com,
	conor+dt@...nel.org,
	cristian.ciocaltea@...labora.com,
	airlied@...il.com,
	jernej.skrabec@...il.com,
	jonas@...boo.se,
	kever.yang@...k-chips.com,
	krzk+dt@...nel.org,
	Laurent.pinchart@...asonboard.com,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	neil.armstrong@...aro.org,
	nicolas.frattaroli@...labora.com,
	robh@...nel.org,
	rfoss@...nel.org,
	hjc@...k-chips.com,
	sebastian.reichel@...labora.com,
	simona@...ll.ch,
	tzimmermann@...e.de,
	devicetree@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	Andy Yan <andy.yan@...k-chips.com>
Subject: [PATCH v3 1/5] dt-bindings: display: rockchip: Add rk3576 DisplayPort

From: Andy Yan <andy.yan@...k-chips.com>

The DisplayPort found on RK3576 is very similar to that of RK3588,
but work in dual pixel mode. And itself does not depend on the I2S
clock or the SPDIF clock when transmit audio.

Signed-off-by: Andy Yan <andy.yan@...k-chips.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@...labora.com>

---

Changes in v3:
- Fix compatible order

Changes in v2:
- Remove unnecessary maxItems

 .../display/rockchip/rockchip,dw-dp.yaml      | 27 ++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-dp.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-dp.yaml
index 6345f0132d43..2b0d9e23e943 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-dp.yaml
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-dp.yaml
@@ -27,12 +27,10 @@ description: |
   * Pixel clock up to 594MHz
   * I2S, SPDIF audio interface
 
-allOf:
-  - $ref: /schemas/sound/dai-common.yaml#
-
 properties:
   compatible:
     enum:
+      - rockchip,rk3576-dp
       - rockchip,rk3588-dp
 
   reg:
@@ -42,6 +40,7 @@ properties:
     maxItems: 1
 
   clocks:
+    minItems: 3
     items:
       - description: Peripheral/APB bus clock
       - description: DisplayPort AUX clock
@@ -50,6 +49,7 @@ properties:
       - description: SPDIF interfce clock
 
   clock-names:
+    minItems: 3
     items:
       - const: apb
       - const: aux
@@ -95,6 +95,27 @@ required:
   - ports
   - resets
 
+allOf:
+  - $ref: /schemas/sound/dai-common.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - rockchip,rk3588-dp
+    then:
+      properties:
+        clocks:
+          minItems: 5
+        clock-names:
+          minItems: 5
+    else:
+      properties:
+        clocks:
+          maxItems: 3
+        clock-names:
+          maxItems: 3
+
 unevaluatedProperties: false
 
 examples:
-- 
2.43.0